Domain Eukarya (most euks are single celled)
Kingdom Protista (controversial)
1. Flagellated
Trypanosoma infects blood
 African sleeping sickness
Trichonympa
digest wood in termites
Video Trypanosoma
Video Trichonympha
2. Ameoboid protozoans
Amoeba (video)
with pseudopod
for movement
Radiolarian
with calciferous shell
3. Ciliated protozoans
Paramecium
Non-motile protozoans
Plasmodium in red blood cells causes malaria
Life cycle video
5. Photosynthetic protista
Euglena
freshwater
has flagellum
Dinophysis Dinoflagellate
marine
Nitzschia stellata
sea ice diatom
Physarum video digesting a birds nest fungus
6. slime molds
Physarum (single cells that can fuse to form
multinucleate slime mold)
Dictyostelium (single-celled, engulf bacteria in soil, can form spores, have
an amoeboid stage)
Algae
Photosynthetic protists
Green algae contain chlorophyll a and b
Chlamydamonas
1. Unicellular
Volvox
2. Colonial
Spirogyra
Oedogonium
3. Multicellular
Multicellular
green
Brown algae = multicellular seaweed
Fucus
Kelp
Laminaria
Sargassum
Pigment = fucoxanthin, chlorophyll a and b
Nereocystis
5. Red algae
Chondrus crispus
Corallina
Pigments = Phycobilins, chlorophyll a and b
end
FYI ONLY! Cladistic classification (Campbell)
supported by DNA analysis, not well worked out!
• Excavata
– Giardia, Euglena, Trypanosoma
Chromalveolates
Dinoflagellates, Plasmodium, Paramecium, Diatoms, golden algae, brown
algae, water molds, downy mildew
Rhizarians
Amoeba, radiolarian, forams, cercozoans
• Unikonts
slime molds, gymnamoebas, entamoebas